Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Jiří Kozelka"'
Publikováno v:
Chemistry - A European Journal. 24:5849-5859
In proteins, the indole side chain of tryptophan can interact with water molecules either in-plane, forming hydrogen bonds, or out-of-plane, with the water molecule contacting the aromatic π face. The latter interaction can be either of the lone pai
Autor:
Filip Šebesta, Séverine Jansen, Jaroslav V. Burda, Milan Zachrdla, Nad'a Špačková, Jiří Kozelka, Pavel Srb, Zuzana Trošanová, Lukáš Žídek
Publikováno v:
Physical Chemistry Chemical Physics. 20:12664-12677
Water molecules can interact with aromatic moieties using either their O-H bonds or their lone-pairs of electrons. In proteins, water-π interactions have been reported to occur with tryptophan and histidine residues, and dynamic exchange between O-H
Autor:
Jiří Kozelka
Publikováno v:
European Biophysics Journal. 46:729-737
Lone pair-π interactions are now recognized as a supramolecular bond whose existence in biological systems is documented by a growing number of examples. They are commonly attributed to electrostatic forces. This review attempts to highlight some re
Publikováno v:
Physical Chemistry Chemical Physics. 18:19472-19481
Lone-pair-π (lp-π) interactions have been suggested to stabilize DNA and protein structures, and to participate in the formation of DNA-protein complexes. To elucidate their physical origin, we have carried out a theoretical multi-approach analysis
Publikováno v:
Chemistry - A European Journal. 23
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 23(14)
Anion-π interactions have been shown to stabilize flavoproteins and to regulate the redox potential of the flavin cofactor. They are commonly attributed to electrostatic forces. Herein we show that anion-flavin interactions can have a substantial ch
Autor:
Jiří Kozelka, Jordan Monnet
Publikováno v:
Journal of Inorganic Biochemistry. 115:106-112
Molecular dynamics (MD) simulations of the single-stranded DNA trinucleotide TG*G*, with the G* guanines crosslinked by the antitumor drug cisplatin, were performed with explicit representation of the water as solvent. The purpose of the simulations
Publikováno v:
Journal of Inorganic Biochemistry. 108:69-79
Platinum diamine complexes are able to crosslink the guanines of d(GC)(2) dinucleotides within double-stranded DNA. The interstrand crosslink thus formed causes a bend of the double helix toward the minor groove and the helical sense changes locally
Publikováno v:
Angewandte Chemie. 122:7602-7605
We report here the first crystallographic evidence for a hydrogen-bonding-like interaction between a water molecule and a d8 metal ion, based on neutron diffraction. According to our HF and MP2 calculations, the interaction is almost entirely dispers
Autor:
Jiří Kozelka
Publikováno v:
Inorganica Chimica Acta. 362:651-668
Experimental and theoretical studies related to the kinetics of interactions between cisplatin derivatives and DNA are critically reviewed. The reaction between DNA and cisplatin is a multistep reaction, consisting of aquation, electrostatic preassoc